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51.
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The LVH (Lucas variability hypothesis) says that the reaction of real output to changes in nominal demand depends negatively upon the variability of the rate of change of nominal demand. The LVH was first proposed as a testable prediction from R. E. Lucas' 1973 model of the business cycle – known as the misperceptions model. The LVH has frequently been successfully tested on cross-country data sets. We first replicate the standard test result. We then proceed to show that the test suffers from the problem that the same LVH-test result appears – qualitatively and quantitatively – even in models having the reverse causal structure, from the one assumed by Lucas. We have consequently shown that the LVH-test is developed within a framework where it is hard to miss -hence the title. 相似文献
53.
Ole Erik Hansen Bent S ndergaÚ rd Sandra Meredith 《Technology Analysis & Strategic Management》2002,14(1):37-56
Supporting and accelerating the adoption and diffusion of environmental innovations amongst small and medium sized enterprises (SMEs) is a major challenge to environmental policy makers. Research suggests that whilst SMEs possess high flexibility, their innovative capacity may be limited to incremental changes within their existing technology system and network. Twenty case studies examining the innovation adoption process in SMEs in four sectors and in five countries within the ENVIS project (commissioned by the EU) revealed great variety in factors driving this process. Findings indicate that this variation can be attributed to the character of the environmental innovation, the specific business opportunity, the regulatory setting and pressure experienced by the sector. Based on these findings an analytical framework is suggested, whereby the environmental innovative capability of SMEs is conceived as the result of an interplay between the competencies, the network relations and the strategic orientation of the company (the 'dynamic triangle'). This indicates that policy to support SME's adoption of environmental innovations has to take an integrated form, i.e. addressing and developing competence, networks and strategic orientation of SMEs simultaneously whilst remaining systemic and context sensitive. 相似文献
54.
Bent Hansen 《Review of Income and Wealth》1977,23(4):397-404
Starting out from the observation that both imports and exports may be viewed as the difference between domestic consumption (use) and production, static standard theory of biases in consumption and production indices is brought to bear upon trade indices: Laspeyres tends to overrate when applied to imports and to underrate when applied to exports; for Paasche, the opposite holds true. Hence, terms of trade tend to be underrated (exaggerated) when based upon Laspeyres (Paasche) price indices. The problem of extending these conclusions to the case of changes in production frontiers and preference maps is discussed. When homotheticity is absent, correlation between price and quantity relatives may upset the simple conclusions. This is of special importance in the large-country situation. Dynamics further complicate the situation. A cobweb mechanism in exports may thus reverse the static results. 相似文献
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56.
This article studies the option-like behaviour of popular momentum strategies implemented in foreign exchange markets. The results confirm recent research findings of strong option-like behaviour for momenutm measures, based on the cumulative return from 12 and 6 months prior to the formation date Surprisingly, there is no such evidence for the popular momentum strategy accounting for a 1-month formation period. 相似文献
57.
Jesper Clement Tore Kristensen Kjell Grønhaug 《Journal of Retailing and Consumer Services》2013,20(2):234-239
It is widely accepted that the human brain has limited capacity for perceptual stimuli and consumers' visual attention, when searching for a particular product or brand in a grocery store, should then be limited by the boundaries of their own perceptual capacity. In this exploratory study, we examine the relationship between abundant in-store stimuli and limited human perceptual capacity. Specifically, we test the influence of package design features on visual attention. Data was collected through two eye-tracking experiments, one in a grocery store using wireless eye-tracking equipment, and another in a lab setting. Findings show that consumers have fragmented visual attention during grocery shopping, and that their visual attention is simultaneously influenced and disrupted by the shelf display. Physical design features such as shape and contrast dominate the initial phase of searching. Time pressure and familiarity with the grocery store are studied and discussed. 相似文献
58.
Bente Lis Christensen Jørgen Stig Nørgard 《Technological Forecasting and Social Change》1976,9(4):411-423
This paper deals with the value aspects of the limits to growth problems. A holistic view of the concepts influencing people's lifestyles, including their social values, are presented. The materialistic, growth oriented lifestyles dominating the U.S. and other highly industrialized nations are analyzed, and the underlying needs and social values presented. Also alternative, less materialistic values are shown to indicate the direction of desirable value changes. How these changes could be accomplished is illustrated in the way a value set of an individual is created through socialization. The authors conclude that the early childhood plays an essential role in achieving the changes, but also that no one need sit back passively and just wait for changes to come along. 相似文献
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60.
The number of empirical studies in personnel economics using administrative data has grown rapidly in recent years. We survey the use of administrative data to examine employment contracts. Specifically, we consider three types of data that have been widely used in empirical studies: historical firm‐level records, contemporary firm‐level records and national matched employer–employee records. Studies using this sort of administrative data have shed considerable light on the nature of employment relationships. 相似文献